The invention relates to an analog manipulation and performance test device for an unmanned manipulation system and its method, which comprises a control unit, a communication unit, a power supply unit, an image acquisition unit and a data display unit which are respectively arranged in two detachable box bodies both sides of the two detachable box bodies are respectively provided with portable handles. The method comprise the following steps: the analog manipulation and performance test device for the unmanned manipulation system enables electric connection with the unmanned manipulation system, the unmanned manipulation system is power on, the analog manipulation and performance test are carried out for collecting state signals, analog signals and image data of the unmanned manipulation system and real time display is carried out the state signals and the analog signals information are preserved if the test process is unfinished, state signals usage determines the execution result of an instruction to satisfy requirement and continuously return to a link for collecting the state signals, simulation signals and image data. The device is detachable and portable in design and can carry out the test work of products at various sites so as to simulate the work environment of products and the analog manipulation and performance test can be finished synchronously.